ISLAMABAD, Pakistan (CNN) -- The effort by U.S. officials to justify raising the terror alert level last week may have shut down an important source of information that has already led to a series of al Qaeda arrests, Pakistani intelligence sources have said.

Until U.S. officials leaked the arrest of Muhammad Naeem Noor Khan to reporters, Pakistan had been using him in a sting operation to track down al Qaeda operatives around the world, the sources said.

In background briefings with journalists last week, unnamed U.S. government officials said it was the capture of Khan that provided the information that led Homeland Security Secretary Tom Ridge to announce a higher terror alert level.

Khan is a computer expert who officials said helped Osama bin Laden communicate with his terror network.

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators

Important Notices: By participating on this discussion
board, visitors agree to abide by the rules outlined on our Rules
page. Messages posted on the Democratic Underground Discussion Forums are the
opinions of the individuals who post them, and do not necessarily represent
the opinions of Democratic Underground, LLC.